lineGetCallWaitingState (Windows Embedded CE 6.0)
1/6/2010
Use the lineGetCallWaitingState function to retrieve the list of media modes for which call waiting is enabled.
Syntax
LONG WINAPI lineGetCallWaitingState(
HLINE hLine,
LPDWORD lpdwClasses
);
Parameters
- hLine
The line device handle. The line device handle must have been previously obtained by a call to lineOpen with the proper TAPI device ID specified and a device-specific extension version successfully negotiated with lineNegotiateExtVersion.
- lpdwClasses
Points to a DWORD indicating which line capability classes are enabled for call waiting. See the Line Capability Classes constants for possible values.
Return Value
Returns zero if the function completes successfully, or a negative error number if an error occurs. The following are possible return values:
- LINEERR_RESOURCEUNAVAIL
- LINEERR_INVALLINEHANDLE
- LINEERR_STRUCTURETOOSMALL
- LINEERR_INVALPOINTER
- LINEERR_UNINITIALIZED
- LINEERR_NOMEM
- LINEERR_OPERATIONUNAVAIL
- LINEERR_OPERATIONFAILED.
Remarks
This function is synchronous. No LINE_REPLY message is sent. Not implemented for CDMA.
Requirements
| Header | extapi.h |
| Library | cellcore.lib |
| Windows Embedded CE | Windows CE 3.0 and later |